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Practical Python Programming for IoT

You're reading from  Practical Python Programming for IoT

Product type Book
Published in Nov 2020
Publisher Packt
ISBN-13 9781838982461
Pages 516 pages
Edition 1st Edition
Languages
Author (1):
Gary Smart Gary Smart

Table of Contents (20) Chapters

Preface Section 1: Programming with Python and the Raspberry Pi
Setting Up your Development Environment Getting Started with Python and IoT Networking with RESTful APIs and Web Sockets Using Flask Networking with MQTT, Python, and the Mosquitto MQTT Broker Section 2: Practical Electronics for Interacting with the Physical World
Connecting Your Raspberry Pi to the Physical World Electronics 101 for the Software Engineer Section 3: IoT Playground - Practical Examples to Interact with the Physical World
Turning Things On and Off Lights, Indicators, and Displaying Information Measuring Temperature, Humidity, and Light Levels Movement with Servos, Motors, and Steppers Measuring Distance and Detecting Movement Advanced IoT Programming Concepts - Threads, AsyncIO, and Event Loops IoT Visualization and Automation Platforms Tying It All Together - An IoT Christmas Tree Assessments Other Books You May Enjoy

Exploring the event-loop approach

We will start our code exploration by discussing an event-loop-based approach to building the sample gizmo that we just tested in the previous section.

The code for the event-loop-based approach can be found in the chapter12/version1_eventloop folder. You will find one file named main.py. Please take the time now to stop and read through the code contained in main.py to get a basic understanding of how the program is structured and how it works. Alternatively, you could add breakpoints or insert print() statements into the code and run it again to understand how it works.

How did it go, and what did you notice? If you thought yuck or got lost in the web of loops, if statements, and state variables, then well done! This means you have invested the time to consider this approach and how the code is constructed.

What I mean by an event-loop approach is demonstrated in the code by the while True: loop abbreviated on line 1:

# chapter12/version1_eventloop...
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